CS 202 MODULE 4 NOTES
CS 202 MODULE 4 NOTES CS 202
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This 5 page Study Guide was uploaded by Kayla Peel on Wednesday March 30, 2016. The Study Guide belongs to CS 202 at University of Alabama - Tuscaloosa taught by Ralph E. Hooper in Winter 2016. Since its upload, it has received 30 views. For similar materials see Intro to the Internet in ComputerScienence at University of Alabama - Tuscaloosa.
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Date Created: 03/30/16
MODULE 4 NOTES Freedom of Speech: the ability of a person to publicly speak or publish any thought with out legal constraints or repercussions o A fundamental right in democratic societies o The First Amendment Web Empowerment: the power that the web provides for individuals to express themselves, influence others, and affect the course of society o Largest impact providing ordinary people with the ability to publish their views to the world o Blog (short for web log): a website created to express one (or more) individual’s views on a given topic. Newsreporting bloggers citizen journalists Internet Censorship: the control of speech and other forms of expression over the internet and web by a government or authority o Libel: the deliberate act of defamation of character by making false statements of fact Not protected under the First Amendment Internet Decency: efforts by governments and other to rid the internet and web of content that they consider indecent or to filter indecent content from some users o One major concern is keeping indecent content from minors o U.S. governments made similar attempts with its 1995 communication decency act Less than a year it was repeated inability to define “indecent” “obscene” and “lewd” o Challenge with censorship is keeping certain content from a subset of the population with out encroaching upon the freedom of others o Content filtering software: works with the web browser to check each website for indecent materials and allow only “decent” webpages to be displayed Network Neutrality: a principle applied to highspeed internet services, whereby all data is delivered to all users with equal priority Web Resources: many and varied, assisting individuals, businesses, and organizations with all facets of life, including education, news and information sharing, communication, travel, commerce, employment, and entertainment o Facebook is one of the most popular web resources o Businesses rely on web resources to function efficiently and effectively o Professionals rely on web resources to develop skills and advance in their careers o Individuals rely on the web for communication, information, and entertainment Search Engine: a valuable software tool that enables users to find information on the web by specifying words that are key to their topics of interest – keywords o Fundamental purpose of the web: make it easier to find related content from diverse internet sources by following hyperlinks Information Overload: individuals and organizations inability to cope with the huge and growing amount of information being collected, stored, analyzed, and delivered o Search has become the biggest application on the web Google has become one of the worlds most profitable companies with more than $50 billion in annual revenue One of the applications that everyone uses Make money through advertisements o Google has the largest share of the search engine market with about 54% of the Global market o Chinas Baidu search engine is 2 with roughly 31% o Microsoft Bing 11% o Yahoo 3.5% o Spiders: follow all web links in an attempt to catalog every web page by topic o Data base: a collection of data organized to meet users’ needs Internet Communications: include textbased communications like email and instant messaging, voice communications like voice over IP (VoIP), video communications, and a variety of group and community forums o Persuasive communication: the ability to communicate with anyone, anytime through a variety of formats Result of advances in wireless and internet communication technology Fundamentally altering the ways in which personal and professional relationships are created and nurtured o Communication before internet: facetoface, telephone, or printed word o Two basic forms of communication: Synchronous communication: people communicate in real time, exchanging thoughts in a fluid conversation. Facetoface conversation, video chat, telephone conversation, online chat, instant messaging Asynchronous communication: allows participants to leave messages for each other to be read, heard, or watched and then responded to at the recipient’s convenience Answering machines, voice mail, social network posts, text, email Forms of Electronic Communication o Text communication Text messaging (Asynch): communication through short text messages via cell phone. Email (Asynch): communication of textbased messages through transmission over a computer network is only slightly more effective than text messaging because there is no character limit. Supports file attachments, which makes it a useful method for transferring data. Messaging vie social media (Synch): communication through synch text messaging between two or more participants utilizing social media such as facebook, google+, or twitter. Also useful for sharing photos, videos, and links. o Voice Communication Voice Mail (Asynch): communication by means of voice messages left on phone services or internet services Phone (Synch): communication through phone conversations allows the use of voice inflection for more effective communication than textbased communication Internet Voice (Synch): communication through internetbased voice through services such as skype or online chat services that support voice communications o Virtual Chat (Synch): communication in an online virtual world where users are represented as avatars and chat via voice or text while interacting with others o Video communication Video phone and chat (Synch): communication through synch. video, typically over the internet or private data network. Telepresence (Synch): communication through highquality video and audio connections over the internet, along with large highdefinition displays to support meetings between people around the world as if they were gathered at one location Social Media (Social networks): websites that allow people to share information, ideas, phots and other forms of media in virtual communities and to comment on items shared o Web was originally designed for information to flow in one direction, from those with the resources to publish information on the web, to the public Transformed into a bidirectional information source where those consuming content were able to easily contribute content o Social media companies make money from paid advertisements o Facebook: (1.35 billion monthly active users) a general social media platform that allows members to post text, photos, or video to the news feed, which can be shared with friends, subsets of friends, individuals, or the worlrd Supports multiple communication channels between members as well ad 3 party apps and many other features o Google+: (300 million monthly active users) facebooks only halfway serious competitor google+ is a googleoffered alternative that offers many of the same features as FB plus video chat with google hangouts and integration with google’s other software o Instagram: (300 million monthly active users) a photocentric social media site that allows members to edit and upload photos and video from mobile devices, using a mobile app, and share on a variety of social networking platforms o Twitter: (280 million monthly active users) a streamlined social media platform that allows members to send and read short 140character messages called “tweets”. Members “follow” their favorite tweeters to see what they may say next and to perhaps retweet a tweet. Hashtags, such as #MTVStars, are used in tweets to make it easy to follow or search for specific topics o LinkedIn: (187 million monthly active users) a professional social network platform that allows members to create a professional profile that serves as an online resume. Members create professional “connections” with other members to create professional opportunities or to find a job o Pinterest: (50 million monthly active users) another photcentric social media platform, but this one allows members to collect images from the web to store in themed collections called boards. For example, a member might create a “Beach Destination” board to collect photos of possible vacation options for future reference or to share with friends Online Information: information of all kinds – business, personal, governmental, factual, opinionated, and even inaccurate – that is delivered over the internet and web Types of Web information o Traditional published works o News o Business o Financial o Government, political, and legal o Opinion o Personal o Support Financial Services: support money management, loans, investments, and transactions for individuals, businesses, and organizations o Online banking has become the default method of banking for both individuals and organizations Online Education: websites designed to educate or support education/training Online Travel: websites and services that support various travel activities such as preparing for travel, finding your way around new environments, reserving flights and lodging, booking tours and activities, and renting vehicles. Maps and Geolocation: provide geographic services for finding your way around, finding people and places, or finding information related to specific locations. o Geographic information systems (GIS): provide geographic information layered over a map o Geotagging: technology that allows for tagging information with an associated location Online employment support: webdelivered information and services that support researching employment options and finding employment o Select a career use online references to discover your personal strengths and weaknesses and then map them to your ideal job o Discover who the players are in your chosen career search the web for a career or industry title and see which companies are represented o Learn about the companies that interest you many companies list career opportunities and provide you with information on how to apply o Network with others in the field There are many online industryspecific discussion groups and forums. Seek them out to make valuable contacts. Set up an account on professionally focused social media like LinkedIn and connect with others o View job listings at general employment websites o View job listings at industryspecific employment websites o Create an impressive website to represent yourself Online Entertainment: includes music, TV, movies and games accessed online via streaming media, subscription services, or as downloads
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